Price for installing bullet edgers

I have been contacted to do a job that I am not quite sure how to bid. I could probably figure it out if it was a little smaller but it is a bigger job and I could use a little help. This project is looking for bullet edging totaling 900 ft.
I am not familiar on how much to charge or a rate in which to figure the bid. Can anyone help me out?

Depending on the size and amount installed we either do $4 per foot or figure how long it will take us in hours multiplied by $55 per man per hour. Plus materials with a 40% mark-upPosted via Mobile Device

Depending on the size and amount installed we either do $4 per foot or figure how long it will take us in hours multiplied by $55 per man per hour. Plus materials with a 40% mark-upPosted via Mobile Device

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I like the $4.00 per foot figure. I can dig in and install over 20 feet in an hour.

Price fairly but price to stay in business.

You can't charge extra because it takes you twice as long to do the job because you have crappy or outmoded equipment.